- Número de modelo del producto: TP3710A
- ASIN: B008NBGOM6
- Producto en Amazon.es desde: 21 de octubre de 2017
- Valoración media de los clientes: Sé el primero en opinar sobre este producto
Tekpower tp3710 a carga electrónica CC, programable, 150 W, bajo Ripple
- 150 W DC de carga electrónica con interfaz programable PC USB, software incluido
- Alta exactitud, resolución y instrumento de precisión, certificado de calibración incluido
- Modo de resistencia/potencia constante/constante corriente constante
- Protección de sobre voltaje/sobre corriente/sobre corriente/sobre temperatura/inversión de polaridad
- Pantalla LCD con retroiluminación + AC 120 V/220 V seleccionable
Detalles del producto
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Descripción del producto
Desde el fabricante:
El Tekpower tp3710 a DC de carga electrónica es un instrumento compacto y asequible que es adecuado tanto para el hogar y uso industrial. Este programable alimentación de DC de carga electrónica tiene una potencia máxima de hasta 150 vatios y se puede utilizar con hasta 360 V DC y 30 A). Viene con ambos un interruptor giratorio y un teclado numérico que se puede utilizar para configurar el voltaje, corriente y potencia. Con su fiabilidad y versatilidad, es una valiosa y herramienta indispensable para probar DC Fuentes de alimentación, baterías de alta capacidad, paneles solares y, laboratorios, etc., ideal para instalaciones de institutos de investigación, R & D. El tp3710 a carga DC programable también dispone de memoria interna, y puede ser conectado a un ordenador a través de un puerto USB con el software incluido para aplicar en tiempo real Control remoto y monitoreo.
Voltaje de Entrada: 0 - 360 V
Corriente de entrada: 0 - 30 A
Potencia de entrada: 0 - 150 W
0,000 ~ 3.999 V & # xFF1 A; 0,2% + 3 mV
4.00 ~ 35.99 V & # xFF1 A; 0,2% + 30 mV
36,0 ~ 360.0 V & # xFF1 A; 0,2% + 300 mV
0,000 ~ 2.999 a & # xFF1 A; 0,2% + 3 mA
3.00 ~ 30.00 a & # xFF1 A; 0,2% + 30 mA
Resolución Mínima: 1 mV de tensión, corriente 1 mA
Menor resistencia conductiva: < 0,08 & # x3 A9;
Ripple: < 10 mVpp
Tamaño: 8 œ x 3 œ x 9 Ÿ "
Peso: 10 kg
Y # x3000; ¿Qué en la caja:
Tekpower tp3710 a Electronics carga
Cable de alimentación de CA
CD de software
Adaptador USB con cable
Kit de rack
Manual de usuario
Certificado de Calibración
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Opiniones de clientes más útiles en Amazon.com
I have not tried the USB software, and don't plan to, given the other negative reviews of that. The included CD has a document which includes the spec for the RS232 serial interface (that's what is on the unit; they include a USB to serial converter) so it would seem pretty simple to write an interface from a microcontroller or a PC to control this unit, or multiple instances (with a multi-serial controller). I may order another or even two so we can simultaneously test multiple outputs, or outputs in excess of 150W. We have a 320W supply to test. My plan is to use power resistors on heatsinks for some of the load, say up to 200W, and then this unit to vary 150W of the total. Multiple of these units should have no issue loading the same output, so two would let me sink 300W.
Just to see what would happen I ran this unit up to 200W of load at which point it nicely beeped and turned off the load. It seems to stop at 199.9W in manual mode. It recovered instantly. If you do need more than 150W out of it for brief peak load testing, it looks like it can handle it. I ran it up to 198W and it was happy for 30 seconds, at which point I reduced the load. I'm guessing/hoping it has some intelligent temperature-based overload sensing and if the ambient temperature is less than the rated max, it can handle more than 150W without overheating. Another day I will stress test it and see at what point it shuts down under extended loads of more than 150W. It does appear that two of these units would let me test a 320W supply at peak loads of 320W or more.
Also in the box are some handles and some rear bumpers - nice touch. I plan to give this some heavy use right away and so far it looks up to the task.
This is a good unit. Solid, reasonably user-friendly, quiet when idle, and meets its specs. The software that comes with it is old-fashioned but serviceable (I run it on Windows 7). It comes with an adapter through which you can connect it to a PC through the included USB cable. If you want to program it yourself it speaks SCPI (a standard instrument-control language).
It also comes with a test report showing 22 measurements that they made and the numerical results of each to verify its performance.
I ran this for two days at 180 Watts -- one day 30V at 6A, one day 60V at 3A. It ran without a hiccup. all the fans when running at full blast were loud but not so much that I couldn't do computer work about three feet away from it.
It seems to do a good job of reporting the actual current, voltage and power at which it is operating.
Setting desired load current or power seems to be reliable and accurate.
I've experimented with setting the load resistance but have not yet fully characterized its behavior.
I have not yet tried any of the more advanced functions.
Unlike for some of the reviewers my knob works perfectly: each click changes the setting by one unit.
The "E3710A" program looks like it was written in about 2003. The visual design is very old fashioned, it's somewhat disorganized and awkward, but ultimately does the job. You can control all the functions of the unit, create and run a 10-step "program" of different load levels, and datalog the operating current, voltage, power and resistance at selected intervals.
The "Discharge" program, apparently for datalogging the characteristics of a battery as its discharged, runs but I haven't tried to use it yet.
This unit is manufactured by Array in Taiwan and sold under various brand names, including: Tekpower, Circuit Specialists and Gossen Metrawatt.
Tekpower appears to be a brand name of Kaito USA, whose Amazon.com storefront is named Electronnix.
I called Kaito USA to get tech support on the included software. They answered quickly, routed me to a tech, who routed me further to another person, who fired up a unit and ran the software. It didn't sound like either of them were experts at this product but I ultimately got the information I needed to understand why the "Excel" button on the software wasn't working for me.
There was no warranty card included with the unit, but tech support said that they warranted it for one year.
o Although the case looks perfect and is quite solid, it is slightly twisted. If I place it upright on a flat surface and rock it back until three feet are solid, the fourth foot is about one millimeter in the air. If I place it upside down on a flat surface it's similarly warped. I've never had a piece of equipment do this, but it looks and works perfectly so I'm not going to worry about it.
o Unlike most datalogging software I use, the "Excel" button doesn't simply save an Excel-compatible file; rather it launches Excel, creates a new spreadsheet and fills it with data. If you don't have excel installed (like I didn't at first) pressing the Excel button pops up the error message "class not registered".
o It looks like only the USB cable that comes with the unit will work. A longer, USB 3 compatible cable didn't work. A USB 2 extension cable added to the included one didn't work.
This review will contain my observations about how this device works, was received, and general info.
The device was received in good condition, some additional packing would have prevented the internal box from being a little beat up.
The device, electronic DC load, worked as advertized, was able to run tests on some large, 400AH, 12VDC ups batteries and log the results. The accuracy of the device is very high.
The only down side is the fact that this was old new stock, as the calibration paperwork had a date of 2009, and an expiration date of 2010, making this unit three (3) years old. The software disk which came with the unit was an unlabeled copy. Do not know if it the most up to date software available, but it did work to log the data from the unit. All in all I give this equipment a good rating, but would have liked to have received the most up to date software, or the ability to update for free, for this device.